66472444227 has 16 divisors (see below), whose sum is σ = 101508256512. Its totient is φ = 37902911520.

The previous prime is 66472444193. The next prime is 66472444229. The reversal of 66472444227 is 72244427466.

It is not a de Polignac number, because 66472444227 - 2¹⁴ = 66472427843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66472444229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3379224 + ... + 3398837.

It is an arithmetic number, because the mean of its divisors is an integer number (6344266032).

Almost surely, 2^66472444227 is an apocalyptic number.

66472444227 is a deficient number, since it is larger than the sum of its proper divisors (35035812285).

66472444227 is a wasteful number, since it uses less digits than its factorization.

66472444227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6778538.

The product of its digits is 3612672, while the sum is 48.

The spelling of 66472444227 in words is "sixty-six billion, four hundred seventy-two million, four hundred forty-four thousand, two hundred twenty-seven".